N-Halamine Functionalized Electrospun Poly(Vinyl Alcohol-co-Ethylene)Nanofibrous Membranes with Rechargeable Antibacterial Activity for Bioprotective Applications  

作　　者：Mingguang Liang Fei Wang Mei Liu Jianyong Yu Yang Si Bin Ding 

机构地区：[1]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China [2]College of Textiles,Donghua University,Shanghai 201620,China [3]Innovation Center for Textile Science and Technology,Donghua University,Shanghai 200051,China

出　　处：《Advanced Fiber Materials》2019年第2期126-136,共11页先进纤维材料（英文）

基　　金：the National Natural Science Foundation of China(Nos.51773033,and 51673037);the Shanghai Committee of Science and Technology(No.18511109500).

摘　　要：Developing bioprotective materials with bactericidal activity is of great significance since it can effectively keep healthcare workers from infection by emerging infectious diseases;however,this is still a big challenge.Herein,we fabricate a novel rechargeable N-halamine antibacterial material by functionalizing electrospun poly(vinyl alcohol-co-ethylene)(EVOH)nanofibers with dimethylol-5,5-dimethylhydantoin(DMDMH).The premise of the design is that the N-halamine com-pound,DMDMH,can be covalently grafted on the nanofibers,endowing the EVOH nanofibrous membranes(ENM)with rechargeable and durable bactericidal activity.The as-prepared DMDMH functionalized ENM(EDNM)render rechargeable chlorination capacity(>2000 ppm),high inactivation efficacy against bacteria(>99.9999%within 3 min),high filtration efficiency(>99.5%)under low air resistance,and robust mechanical properties,which are due to the synergistic effect of the unique characters of N-halamines and electrospun nanofibrous architecture.The successful synthesis of the N-halamine antibacterial membranes can serve as a functional layer of protective equipment that capable of inactivating and intercepting pathogenic bioaerosols,providing new ways into the development of new-generation antibacterial bioprotective materials.

关 键 词：Electrospinning NANOFIBERS RECHARGEABLE Antibacterial Bioprotective applications 

分 类 号：TB3[一般工业技术—材料科学与工程]